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Finding the Fourth Proportional to 3,849.53, 5,309.63 and 3,791.93

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Solution

The fourth proportional to 3,849.53, 5,309.63 and 3,791.93 is: 5,230.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,849.53 : 5,309.63 = 3,791.93 : x
  2. Step 2: Convert to fraction form
    3,849.53/5,309.63 = 3,791.93/x
  3. Step 3: Cross multiply
    3,849.53x = 5,309.63 × 3,791.93
  4. Step 4: Simplify right side
    3,849.53x = 20,133,726.33
  5. Step 5: Solve for x
    x = 20,133,726.33/3,849.53
  6. Step 6: Final answer
    x = 5,230.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.